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The stock solution is diluted with a shape controller solution and then aged at 100 ¡ãC for 1 day and at 140 ¡ãC for 3 days¡£
In a typical procedure, titanium alkoxide is added to the base at 2 ¡ãC in alcoholic solvents in a threeneck flask and is heated at 50-60 ¡ãC for 13 days or at 90-100 ¡ãC for 6 h¡£
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